通过电化学刻蚀重塑碳点。
Resculpting carbon dots via electrochemical etching.
机构信息
State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China.
UCLan Research Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, PR12HE, UK.
出版信息
Sci Rep. 2023 Mar 6;13(1):3710. doi: 10.1038/s41598-023-30547-6.
Substantial efforts are directed into exploring the structure-properties relationships of photoluminescent Carbon dots (C-dots). This study unravels a resculpting mechanism in C-dots that is triggered by electrochemical etching and proceeds via extensive surface oxidation and carbon-carbon breakage. The process results in the gradual shrinkage of the nanoparticles and can enhance the quantum yield by more than half order of magnitude compared to the untreated analogues.
人们投入大量精力探索发光碳点（C-dots）的结构-性能关系。本研究揭示了一种通过电化学蚀刻引发的 C-dots 重塑机制，该机制通过广泛的表面氧化和碳-碳断裂进行。该过程导致纳米颗粒逐渐收缩，与未经处理的类似物相比，量子产率可提高一个半数量级以上。
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